The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 2013
Filed:
Oct. 26, 2010
Light guide plate with overlapping diffusion net points, and illumination apparatus using such plate
Wei-chih Wang, Hsin-Chu, TW;
Chi-ming Tseng, Hsin-Chu, TW;
Wei-chun Yang, Hsin-Chu, TW;
Udo Custodis, Hsin-Chu, TW;
Shih-yuan Yu, Hsin-Chu, TW;
Wei-Chih Wang, Hsin-Chu, TW;
Chi-Ming Tseng, Hsin-Chu, TW;
Wei-Chun Yang, Hsin-Chu, TW;
Udo Custodis, Hsin-Chu, TW;
Shih-Yuan Yu, Hsin-Chu, TW;
Young Lighting Technology Inc., Hsin-Chu, TW;
Abstract
An illumination apparatus includes a light guide plate having a plurality of first and second diffusion net points formed on a surface of a light transmissive substrate, and at least one light emitting element disposed to emit light into a light incident surface of the light guide plate. A portion of the first diffusion net points at least partially overlaps the second diffusion net points, and the size of the first diffusion net points is smaller than the size of the second diffusion net points.